Modbus TCP/RTU to HTTP Gateway (discontinued)

Modbus TCP/RTU to HTTP Gateway acts as a protocol converter. It allows Modbus data to be used with an HTTP web-based network.
The Modbus RTU driver allows the Gateway to transfer data to and from devices via a serial RS485 connection using the Modbus protocol.
The Modbus TCP driver allows the Gateway to transfer data to and from devices over Ethernet TCP/IP using the Modbus protocol.
The Web (HTTP, XML, REST, Json, MQTT) driver allows the Gateway to push data to the Web via a variety of Protocols.
SKU:
CAS 2700-76

This product has been replaced by the Modbus and BACnet Quickserver Gateway

CAS Hardware 700

The CAS 700 Hardware device contains 2x 9-pin serial ports (1x RS485 and 1xRS232), and one Ethernet port. The device also contains a microSD card where system files, assets, configurations, and logs are stored.

The device has the following system drivers that can be enabled:

  • HTTP REST Server - a passive web server with an API that users can interact with the device to get or set values
  • HTTP Push Driver - a driver that can be configured to push data in a specific format (JSON, XML, CSV) to a 3rd party web server. Current data formats are Chipkin's default JSON payload and VeederRoot Tank data as JSON. Please contact Chipkin for information on adding additional formats.

Modbus RTU Driver

The CAS Modbus RTU driver allows the CAS Gateway to transfer data to and from devices via a serial RS485 connection using the Modbus protocol.  The CAS Gateway can either be a Client, reading and controlling values from a slave, or a Server, serving data to a Modbus Master.

The CAS Modbus RTU Driver supports the following Modbus Functions:

- 01 (0x01) Read Coils- 05 (0x05) Write Single Coil
- 02 (0x02) Read Discrete Inputs- 06 (0x06) Write Single Register
- 03 (0x03) Read Holding Registers- 15 (0x0F) Write Multiple Coils
- 04 (0x04) Read Input Registers- 16 (0x10) Write Multiple Registers

Modbus TCP Driver

The CAS Modbus TCP driver allows the CAS Gateway to transfer data to and from devices over Ethernet TCP/IP using the Modbus protocol.  The CAS Gateway can either be a Client, reading and controlling values from a slave, or a Server, serving data to a Modbus Master.

The CAS Modbus TCP Driver supports the following Modbus Functions:

- 01 (0x01) Read Coils - 05 (0x05) Write Single Coil
- 02 (0x02) Read Discrete Inputs- 06 (0x06) Write Single Register
- 03 (0x03) Read Holding Registers    - 15 (0x0F) Write Multiple Coils
- 04 (0x04) Read Input Registers- 16 (0x10) Write Multiple Registers

Web (HTTP, XML, REST, Json, MQTT) Driver

The Web Diver allows for data to be monitored by remote systems running applications that can issue HTTP or SOAP/XML GET requests – such applications can be easily developed by end users. Of course, this data is available using an Internet Browser such as Internet Explorer or Google Chrome

I'd like to inquire about the Modbus TCP/RTU to HTTP Gateway (discontinued) CAS 2700-76. Please provide me with a quote for this product.

Specifications

The following specifications are common to all Chipkin gateways.

  • Certifications: UL and ULc approved
  • Ports:
    • 10/100BASE-T with RJ-45 connector
    • 1x RS232 port
    • 1x RS485 port (different models have additional ports)
  • Power: 7 - 24 VDC through an external power supply. (12V @ 90mA)
  • Operating temperature: 0 - 70 °C (32 - 158 °F)
  • LEDs: link, speed/data, power

Dimensions
  • Dimensions (LxWxH): 107 x 83 x 25 mm (4.2 x 3.25 x 1 in.)
  • Connection type: RS485 (jumper change to RS232)

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Block Diagrams

BACnet IP and Modbus to HTTP

Resources

All CAS 2500, 2700, 2800 products

A quick start guide with instructions for some of the basic operations of the CAS Gateway product line. Includes instructions for the following:

  • Detecting the CAS Gateway via the computer and settings its IP Address
  • Downloading the Firmware to the CAS Gateway
  • Downloading the Assets to the CAS Gateway
  • Downloading the Configuration to the CAS Gateway

Additional Information

CAS 2500/2700 RS485 Connector

Datasheet-SB700EX-100IR


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RS485-4-to-2.png


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